Paperless electronic signature system and method

Abstract

The invention relates to a paperless electronic signature system and method. The system comprises a presentation layer, a business layer, an integration layer and a data layer, the presentation layer is a working interface of a user and is responsible for interacting with the user; the business layer is used for packaging business logic and is responsible for processing business rules and decisions; the integration layer is used for realizing communication of the presentation layer, the service layer and the data layer; the data layer is used for storing and managing data; the display layer is in communication connection with the business layer, the business layer is in communication connection with the integration layer and the data layer, rich user interaction functions such as seal perforation, seal anti-counterfeiting, materialization gray scale and PDF production are provided for the display layer, the functions can greatly improve the use experience of a user, the concise architecture of the business layer, the integration layer and the data layer is achieved, and the user experience is improved. And the fault rate of the system is reduced.

Description

Technical Field

[0001] The present invention relates to a paperless electronic signature system and method, belonging to the technical field of digital authentication. Background Art

[0002] With the rapid development of information technology, enterprises have an increasing demand for efficient, convenient and secure document signing. The traditional paper signature method requires a lot of time and energy, such as printing, signing, stamping, mailing and other cumbersome steps, and is easily subject to geographical and time restrictions. This leads to a long document signing cycle and low efficiency, which cannot meet the needs of modern enterprises for rapid response and efficient collaboration. Paper documents are easily lost, damaged or tampered with during delivery and storage, posing a high security risk. In addition, signatures and seals on paper documents are also easy to be forged or misappropriated, posing a serious threat to the legitimate rights and interests of enterprises. The traditional paper signature method consumes a lot of resources such as paper, ink, printing equipment, and requires dedicated personnel to manage and maintain. This not only increases the operating costs of enterprises, but also creates an unnecessary burden on the environment.

[0003] Prior art, such as the Chinese patent with patent number "CN113822557A", discloses a data fusion management system, device, electronic device and medium. The problem with this system is that the architecture includes multiple components such as business system, resource framework, operation framework, integrated service framework and system interface, which is more complicated. This complexity may increase the development and maintenance costs of the system, and may also increase the failure rate of the system. Business data needs to go through multiple links such as rule configuration of the resource framework, format processing of the operation framework and standard specification processing of the integrated service framework. The data processing process may be more cumbersome. This may lead to a decrease in data processing efficiency and an increase in the risk of errors in the data processing process. It focuses more on data processing and integration services, and may give relatively less consideration to user interaction. This may lead to certain deficiencies in the user interaction experience. Summary of the invention

[0004] In order to solve the above problems existing in the prior art, the present invention proposes a paperless electronic signature system and method.

[0005] The technical solution of the present invention is as follows:

[0006] On the one hand, the present invention provides a paperless electronic signature system, including a presentation layer, a business layer, an integration layer and a data layer;

[0007] The presentation layer is the user's working interface and is responsible for interacting with the user;

[0008] The business layer is used to encapsulate business logic and is responsible for processing business rules and decisions;

[0009] The integration layer is used to realize the communication among the presentation layer, the business layer and the data layer;

[0010] The data layer is used to store and manage data;

[0011] The presentation layer is communicatively connected to the business layer, and the business layer is communicatively connected to the integration layer and the data layer.

[0012] As a preferred embodiment, the presentation layer includes a user work interface, a saddle seal, a seal anti-counterfeiting, a materialized grayscale, a PDF production, a signature verification, a QR code and a handwritten signature;

[0013] The user work interface is used to display the UI interface of the signature system to the user;

[0014] The saddle seal is used to provide multi-page saddle seals and double-page saddle seals;

[0015] The anti-counterfeiting seal is used to prevent forgery and tampering;

[0016] The materialized grayscale is used to set the stamp atomization process to prevent illegal screenshots;

[0017] The PDF production is used for the functions of generating, opening, reading, saving, printing, searching for text, reading by turning pages, directory, file zooming, full screen display, and view switching of PDF files;

[0018] The signature verification is used to provide status verification of the electronic seal after issuance;

[0019] The QR code is used for identity authentication and confirmation stamping;

[0020] The handwritten signature is used to implement handwritten signature and review on the web page.

[0021] As a preferred implementation, the business layer includes stamp management, seal management, signature rules, document management, authority management, certificate management, system management and log management;

[0022] The impression management is used for reviewing the impression;

[0023] The seal management is used to switch the status of the prepared seals to start, stop and abolish;

[0024] The signature rule is used to configure the signature rule of the OFD electronic certificate server;

[0025] The document management is used to check the added documents;

[0026] The authority management is used to manage the authority of the produced seal;

[0027] The certificate management is used to maintain the server certificate used for automatic server signing, and the server certificate includes a soft certificate and an encryption machine certificate;

[0028] The system management is used to realize the centralized deployment and hierarchical management of electronic signatures;

[0029] The log management is used to record the log information automatically signed by the server.

[0030] As a preferred embodiment, the integration layer includes a smart signature interface, a seal verification interface, a seal display interface and a document acquisition interface;

[0031] The smart signature interface is used to implement identity authentication for document stamping;

[0032] The seal verification interface is used to provide status verification of the electronic seal after issuance;

[0033] The seal display interface is used to display the seal list and seal information;

[0034] The document acquisition interface is used to obtain data of the document to be signed.

[0035] As a preferred embodiment, the data layer includes document data, seal data, certificate data, relational database and organizational data;

[0036] The document data is used to design, produce and manage templates for electronic documents and electronic certificates;

[0037] The seal data is used to record the information of application, review, production and status of the electronic seal;

[0038] The certificate data is used to verify and control the signature;

[0039] The relational database is used to implement the addition, deletion, modification and query of document data, seal data, certificate data and organizational data;

[0040] The organizational data is used to manage the organization.

[0041] In another aspect, the present invention further provides a paperless electronic signature method, comprising the following steps:

[0042] Constructing a presentation layer, which is the user's work interface and is responsible for interacting with the user;

[0043] Build a business layer, which is used to encapsulate business logic and is responsible for processing business rules and decisions;

[0044] Construct an integration layer, which is used to realize communication among the presentation layer, business layer and data layer;

[0045] Building a data layer, wherein the data layer is used to store and manage data;

[0046] The presentation layer interacts with the business layer for data, and the business layer interacts with the integration layer and the data layer for data.

[0047] As a preferred embodiment, the presentation layer includes a user work interface, a saddle seal, a seal anti-counterfeiting, a materialized grayscale, a PDF production, a signature verification, a QR code and a handwritten signature;

[0048] The user work interface is used to display the UI interface of the signature system to the user;

[0049] The saddle seal is used to provide multi-page saddle seals and double-page saddle seals;

[0050] The anti-counterfeiting seal is used to prevent forgery and tampering;

[0051] The materialized grayscale is used to allow the stamp atomization process to be set to prevent illegal screenshots;

[0052] The PDF production is used for the functions of generating, opening, reading, saving, printing, searching for text, reading by turning pages, directory, file zooming, full screen display, and view switching of PDF files;

[0053] The signature verification is used to provide status verification of the electronic seal after issuance;

[0054] The QR code is used for identity authentication and confirmation stamping;

[0055] The handwritten signature is used to implement handwritten signature and review on the web page.

[0056] As a preferred implementation, the business layer includes stamp management, seal management, signature rules, document management, authority management, certificate management, system management and log management;

[0057] The impression management is used for reviewing the impression;

[0058] The seal management is used to switch the status of the prepared seals to start, stop and abolish;

[0059] The signature rule is used to configure the OFD electronic certificate server signature rule;

[0060] The document management is used to check the added documents;

[0061] The authority management is used to manage the authority of the produced seal;

[0062] The certificate management is used to maintain the server certificate used for automatic server signing, and the server certificate includes a soft certificate and an encryption machine certificate;

[0063] The system management is used to realize the centralized deployment and hierarchical management of electronic signatures;

[0064] The log management is used to record the log information automatically signed by the server.

[0065] As a preferred embodiment, the integration layer includes a smart signature interface, a seal verification interface, a seal display interface and a document acquisition interface;

[0066] The smart signature interface is used to implement identity authentication for document stamping;

[0067] The seal verification interface is used to provide status verification of the electronic seal after issuance;

[0068] The seal display interface is used to display the seal list and seal information;

[0069] The document acquisition interface is used to obtain data of the document to be signed.

[0070] As a preferred embodiment, the data layer includes document data, seal data, certificate data, relational database and organizational data;

[0071] The document data is used to design, produce and manage templates for electronic documents and electronic certificates;

[0072] The seal data is used to record the information of application, review, production and status of the electronic seal;

[0073] The certificate data is used to verify and control the signature;

[0074] The relational database is used to implement the addition, deletion, modification and query of document data, seal data, certificate data and organizational data;

[0075] The organizational data is used to manage the organization.

[0076] The present invention has the following beneficial effects:

[0077] The clear division of the display layer, business layer, integration layer and data layer of the present invention makes the system structure clear, easy to maintain and expand. Each layer undertakes specific functions, reducing the complexity and coupling degree of the system. The display layer provides a user-friendly working interface, supports multiple functions such as saddle seal, seal anti-counterfeiting, materialized grayscale, PDF production, signature verification, QR code authentication and handwritten signature, and meets the signature requirements in different scenarios. The business layer encapsulates rich business logic, including mold management, seal management, signature rule configuration, document management, authority management, certificate management, system management and log management, etc., to ensure the compliance and security of the signature process. The integration layer realizes efficient communication and integration between the display layer, business layer and data layer through the intelligent signature interface, seal verification interface, seal display interface and document acquisition interface, ensuring the accuracy and consistency of the data. The data layer realizes the comprehensive storage and management of electronic documents, electronic certificates, electronic seals and certificates through the comprehensive management of document data, seal data, certificate data, relational database and organizational data, and improves the reliability and security of the data. Through technical means such as seal anti-counterfeiting, materialized grayscale, and QR code authentication, forgery and tampering are effectively prevented, and the security and credibility of signatures are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0078] Figure 1 The present invention is a flowchart for implementing the method. DETAILED DESCRIPTION

[0079] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0080] It should be understood that the step numbers used in this document are only for convenience of description and are not intended to limit the order in which the steps are executed.

[0081] It should be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0082] The terms “include” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0083] The term "and / or" means and includes any and all possible combinations of one or more of the associated listed items.

[0084] Embodiment 1:

[0085] The present invention provides a paperless electronic signature system, including a presentation layer, a business layer, an integration layer and a data layer;

[0086] The presentation layer is the user's work interface, responsible for interacting with the user. The presentation layer provides a variety of signature functions, including saddle seal, seal anti-counterfeiting, atomization grayscale, OFD generation, signature verification, QR code, handwritten signature and other basic functional modules to meet the customer's work needs. COM, ActiveX, AJAX, and JavaAcript technologies were used for development and implementation.

[0087] The business layer is used to encapsulate business logic, is responsible for processing business rules and decisions, and performs corresponding operations based on input data. It usually interacts with the presentation layer and the data layer to obtain data and process it. The signature system business layer includes stamp management, seal management, signature rules, template elements, template files, component updates, document management, timestamp management, authority management, certificate management, system management, log management and other services.

[0088] The integration layer is used to realize the communication between the presentation layer, business layer and data layer, including API, message queue, service bus, etc., which is used to connect external systems or microservices. It ensures that different systems or components can effectively exchange data and interoperate.

[0089] The signature system integration includes intelligent signature interface, seal verification interface, seal display interface, document acquisition interface, etc. It is mainly implemented using Web Services, HTTP+XML, FTP and other technologies.

[0090] The data layer is used to store and manage data, interact with the database system, and perform data creation, deletion, modification, and query (CRUD) operations. The data layer uses Oracle and MySQL databases to implement data layer storage.

[0091] The presentation layer is communicatively connected to the business layer, and the business layer is communicatively connected to the integration layer and the data layer.

[0092] In the signature system, the presentation layer, business layer, integration layer and data layer collaborate through a specific interaction mechanism. The business layer is responsible for interacting with customers and providing services, the integration layer is responsible for communication between services and modules, and the data layer is responsible for data storage.

[0093] Example of interaction flow: When a user initiates the handwritten signature function in the presentation layer, the presentation layer passes the information to a specific method in the business layer for processing. The business layer may need to obtain data from the data layer or store data in the data layer. If it needs to interact with external services, the business layer will initiate a request through the integration layer. The integration layer sends the request to the external system and passes it back to the business layer after receiving the response. After the business layer finally processes all the logic, it returns the result (data or status) to the presentation layer. The presentation layer receives the result and updates the user interface to feedback the result of the operation to the user.

[0094] As a preferred embodiment, the presentation layer includes a user work interface, a saddle seal, a seal anti-counterfeiting, a materialized grayscale, a PDF production, a signature verification, a QR code and a handwritten signature;

[0095] The user work interface is used to display the UI interface of the signature system to the user;

[0096] The saddle seal is used to provide multi-page saddle seals and double-page saddle seals;

[0097] The seal anti-counterfeiting is used to prevent forgery and tampering, and protect the authenticity and security of important documents and assets;

[0098] The materialized grayscale is used to set the stamp atomization process to prevent illegal screenshots;

[0099] The PDF production is used for the functions of generating, opening, reading, saving, printing, searching for text, reading by turning pages, directory, file zooming, full screen display, and view switching of PDF files;

[0100] The signature verification is used to provide status verification of the electronic seal after issuance;

[0101] The QR code is used for identity authentication and confirmation stamping;

[0102] The handwritten signature is used to implement handwritten signature and review on web pages. This function can be reviewed with a mouse or stylus. When signing or reviewing, you need to enter a password to confirm the user's identity. Our company has a dedicated handwritten signature board to choose from. Handwriting supports pressure sensitivity, and can write with brush, pen and other effects.

[0103] As a preferred implementation, the business layer includes stamp management, seal management, signature rules, document management, authority management, certificate management, system management and log management;

[0104] The stamp management is used to review the stamps. The submitted stamps must be reviewed by the administrator before they can be made into stamps.

[0105] The seal management is used to switch the status of the prepared seals to start, stop and abolish;

[0106] The signature rules are used to configure the signature rules of the OFD electronic certificate server, and the background realizes automatic stamping of electronic certificates;

[0107] The document management is used to check the added documents and check the specific operation time, etc.

[0108] The authority management is used to manage the authority of the prepared seal. Only when the seal is assigned to the user can the user use the seal;

[0109] The certificate management is used to maintain the server certificate used for automatic server signing, and the server certificate includes a soft certificate and an encryption machine certificate;

[0110] The system management is used to realize the centralized deployment and hierarchical management of electronic signatures;

[0111] The log management is used to record the log information of the server's automatic signature, including the called business system, calling interface parameters, processing results, stamping time, etc.

[0112] As a preferred embodiment, the integration layer includes a smart signature interface, a seal verification interface, a seal display interface and a document acquisition interface;

[0113] The smart signature interface is used to implement identity authentication for document stamping, as well as a series of electronic signature applications such as stamping and digital signature;

[0114] The seal verification interface is used to provide status verification of the electronic seal after issuance;

[0115] The seal display interface is used to display the seal list and seal information;

[0116] The document acquisition interface is used to obtain data of the document to be signed.

[0117] As a preferred embodiment, the data layer includes document data, seal data, certificate data, relational database and organizational data;

[0118] The document data is used to design, produce and manage templates for electronic documents and electronic certificates;

[0119] The seal data is used to record the information of application, review, production and status of the electronic seal;

[0120] The certificate data is used to verify and control the signature. Each signatory holds a smart card (USBKEY) and independently holds his or her own digital certificate identity. Through the verification and control of the digital certificate, the user's identity security is verified and the seal security is controlled;

[0121] The relational database is used to implement the addition, deletion, modification and query of document data, seal data, certificate data and organizational data;

[0122] The organizational data is used to manage the organizational structure. The present invention supports multi-level organizational structures and supports the management of tree-type organizational structures. The superior organization manages the subordinate organization, thereby enabling the electronic signature management system to support the application mode of "centralized deployment and hierarchical management".

[0123] Embodiment 2:

[0124] See also Figure 1 The present invention also provides a paperless electronic signature method, comprising the following steps:

[0125] Constructing a presentation layer, which is the user's work interface and is responsible for interacting with the user;

[0126] Build a business layer, which is used to encapsulate business logic and is responsible for processing business rules and decisions;

[0127] Construct an integration layer, which is used to realize communication among the presentation layer, business layer and data layer;

[0128] Building a data layer, wherein the data layer is used to store and manage data;

[0129] The presentation layer interacts with the business layer for data, and the business layer interacts with the integration layer and the data layer for data.

[0130] As a preferred embodiment, the presentation layer includes a user work interface, a saddle seal, a seal anti-counterfeiting, a materialized grayscale, a PDF production, a signature verification, a QR code and a handwritten signature;

[0131] The user work interface is used to display the UI interface of the signature system to the user;

[0132] The saddle seal is used to provide multi-page saddle seals and double-page saddle seals;

[0133] The anti-counterfeiting seal is used to prevent forgery and tampering;

[0134] The materialized grayscale is used to allow the stamp atomization process to be set to prevent illegal screenshots;

[0135] The PDF production is used for the functions of generating, opening, reading, saving, printing, searching for text, reading by turning pages, directory, file zooming, full screen display, and view switching of PDF files;

[0136] The signature verification is used to provide status verification of the electronic seal after issuance;

[0137] The QR code is used for identity authentication and confirmation stamping;

[0138] The handwritten signature is used to implement handwritten signature and review on the web page.

[0139] As a preferred implementation, the business layer includes stamp management, seal management, signature rules, document management, authority management, certificate management, system management and log management;

[0140] The impression management is used for reviewing the impression;

[0141] The seal management is used to switch the status of the prepared seals to start, stop and abolish;

[0142] The signature rule is used to configure the OFD electronic certificate server signature rule;

[0143] The document management is used to check the added documents;

[0144] The authority management is used to manage the authority of the produced seal;

[0145] The certificate management is used to maintain the server certificate used for automatic server signing, and the server certificate includes a soft certificate and an encryption machine certificate;

[0146] The system management is used to realize the centralized deployment and hierarchical management of electronic signatures;

[0147] The log management is used to record the log information automatically signed by the server.

[0148] As a preferred embodiment, the integration layer includes a smart signature interface, a seal verification interface, a seal display interface and a document acquisition interface;

[0149] The smart signature interface is used to implement identity authentication for document stamping;

[0150] The seal verification interface is used to provide status verification of the electronic seal after issuance;

[0151] The seal display interface is used to display the seal list and seal information;

[0152] The document acquisition interface is used to obtain data of the document to be signed.

[0153] As a preferred embodiment, the data layer includes document data, seal data, certificate data, relational database and organizational data;

[0154] The document data is used to design, produce and manage templates for electronic documents and electronic certificates;

[0155] The seal data is used to record the information of application, review, production and status of the electronic seal;

[0156] The certificate data is used to verify and control the signature;

[0157] The relational database is used to implement the addition, deletion, modification and query of document data, seal data, certificate data and organizational data;

[0158] The organizational data is used to manage the organization.

[0159] In the embodiments of the present application, "at least one" refers to one or more, and "more than one" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. Among them, A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c can be represented by: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, c can be single or multiple.

[0160] Those of ordinary skill in the art will appreciate that the various units and algorithm steps described in the embodiments disclosed herein can be implemented in a combination of electronic hardware, computer software, and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0161] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0162] In several embodiments provided in the present application, if any function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory; hereinafter referred to as: ROM), random access memory (Random Access Memory; hereinafter referred to as: RAM), disk or optical disk, and other media that can store program codes.

[0163] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A paperless electronic signature system, characterized in that: Including presentation layer, business layer, integration layer and data layer; The presentation layer is the user's working interface and is responsible for interacting with the user; The business layer is used to encapsulate business logic and is responsible for processing business rules and decisions; The integration layer is used to realize the communication among the presentation layer, the business layer and the data layer; The data layer is used to store and manage data; The presentation layer is communicatively connected to the business layer, and the business layer is communicatively connected to the integration layer and the data layer.

2. The paperless electronic signature system according to claim 1, characterized in that: The presentation layer includes user interface, interlineation seal, seal anti-counterfeiting, materialization grayscale, PDF production, signature verification, QR code and handwritten signature; The user work interface is used to display the UI interface of the signature system to the user; The saddle seal is used to provide multi-page saddle seals and double-page saddle seals; The seal anti-counterfeiting is used to prevent forgery and tampering; The materialized grayscale is used to set the stamp atomization process to prevent illegal screenshots; The PDF production is used for the functions of generating, opening, reading, saving, printing, searching for text, reading by turning pages, directory, file zooming, full screen display, and view switching of PDF files; The signature verification is used to provide status verification of the electronic seal after issuance; The QR code is used for identity authentication and confirmation stamping; The handwritten signature is used to implement handwritten signature and review on the web page.

3. The paperless electronic signature system according to claim 1, characterized in that: The business layer includes stamp management, seal management, signature rules, document management, authority management, certificate management, system management and log management; The impression management is used for reviewing the impression; The seal management is used to switch the status of the prepared seals to start, stop and abolish; The signature rule is used to configure the signature rule of the OFD electronic certificate server; The document management is used to check the added documents; The authority management is used to manage the authority of the produced seal; The certificate management is used to maintain the server certificate used for automatic server signing, and the server certificate includes a soft certificate and an encryption machine certificate; The system management is used to realize the centralized deployment and hierarchical management of electronic signatures; The log management is used to record the log information automatically signed by the server.

4. The paperless electronic signature system according to claim 1, characterized in that: The integration layer includes a smart signature interface, a seal verification interface, a seal display interface, and a document acquisition interface; The smart signature interface is used to implement identity authentication for document stamping; The seal verification interface is used to provide status verification of the electronic seal after issuance; The seal display interface is used to display the seal list and seal information; The document acquisition interface is used to obtain data of the document to be signed.

5. The paperless electronic signature system according to claim 1, characterized in that: The data layer includes document data, seal data, certificate data, relational database and organizational data; The document data is used to design, produce and manage templates for electronic documents and electronic certificates; The seal data is used to record the information of application, review, production and status of the electronic seal; The certificate data is used to verify and control the signature; The relational database is used to implement the addition, deletion, modification and query of document data, seal data, certificate data and organizational data; The organizational data is used to manage the organization.

6. A paperless electronic signature method, characterized in that: The following steps are involved: Constructing a presentation layer, which is the user's work interface and is responsible for interacting with the user; Build a business layer, which is used to encapsulate business logic and is responsible for processing business rules and decisions; Construct an integration layer, which is used to realize communication among the presentation layer, business layer and data layer; Building a data layer, wherein the data layer is used to store and manage data; The presentation layer interacts with the business layer for data, and the business layer interacts with the integration layer and the data layer for data.

7. The paperless electronic signature method according to claim 6, characterized in that: The presentation layer includes user interface, interlineation seal, seal anti-counterfeiting, materialization grayscale, PDF production, signature verification, QR code and handwritten signature; The user work interface is used to display the UI interface of the signature system to the user; The saddle seal is used to provide multi-page saddle seals and double-page saddle seals; The seal anti-counterfeiting is used to prevent forgery and tampering; The materialized grayscale is used to allow the stamp atomization process to be set to prevent illegal screenshots; The PDF production is used for the functions of generating, opening, reading, saving, printing, searching for text, reading by turning pages, directory, file zooming, full screen display, and view switching of PDF files; The signature verification is used to provide status verification of the electronic seal after issuance; The QR code is used for identity authentication and confirmation stamping; The handwritten signature is used to implement handwritten signature and review on the web page.

8. The paperless electronic signature method according to claim 6, characterized in that: The business layer includes stamp management, seal management, signature rules, document management, authority management, certificate management, system management and log management; The impression management is used for reviewing the impression; The seal management is used to switch the status of the prepared seals to start, stop and abolish; The signature rule is used to configure the OFD electronic certificate server signature rule; The document management is used to check the added documents; The authority management is used to manage the authority of the produced seal; The certificate management is used to maintain the server certificate used for automatic server signing, and the server certificate includes a soft certificate and an encryption machine certificate; The system management is used to realize the centralized deployment and hierarchical management of electronic signatures; The log management is used to record the log information automatically signed by the server.

9. The paperless electronic signature method according to claim 6, characterized in that: The integration layer includes a smart signature interface, a seal verification interface, a seal display interface, and a document acquisition interface; The smart signature interface is used to implement identity authentication for document stamping; The seal verification interface is used to provide status verification of the electronic seal after issuance; The seal display interface is used to display the seal list and seal information; The document acquisition interface is used to obtain data of the document to be signed.

10. The paperless electronic signature method according to claim 6, characterized in that: The data layer includes document data, seal data, certificate data, relational database and organizational data; The document data is used to design, produce and manage templates for electronic documents and electronic certificates; The seal data is used to record the information of application, review, production and status of the electronic seal; The certificate data is used to verify and control the signature; The relational database is used to implement the addition, deletion, modification and query of document data, seal data, certificate data and organizational data; The organizational data is used to manage the organization.

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